ASCII Font
It is your private cyberspace, of course you can use whatever font you like, however, if you do not have a specific preference then the Hack Typeface is worth considering, for its clear representation of each character.
-
Supported Character Sets:
ASCII, Latin-1, Latin Extended A, Greek, Cyrillic -
Source:
GitHub - source-foundry/Hack: A typeface designed for source code
Some other recommended open source mono space fonts are also listed here.